Proportions

Is this graph proportional?

• Yes
• No

What does k represent in the equation y = kx?

• constant for preparation
• constant of proportionality
• kangaroos
• krispy kreme

How do you find k? 

• x/y
• y/x
• y=kx
• x ⋅ y

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound
• $3.60 per pound
• $1.20 per pound
• $1.10 per pound

Is this graph proportional?

• Yes
• No

Is this table proportional?

• Yes
• No

In the equation y = 14x, what is the constant of proportionality?

• y
• x
• 14
• 1/14

The number of trees and the number of apples are given in the table above.  Determine which statement below is correct.

• The table is not proportional because the unit rate is not constant.
• The table is proportional and the unit rate is 1/13
• The table is proportional and the unit rate is 13.
• The table is not proportional because it doesn't pass through the origin.

Using the graph above, determine the constant of proportionality.

• k = 0
• k = 1
• k = 3
• k = 6

Using the table above, determine which statement is correct.

• The table is proportional and the unit rate is 100.
• The table is not proportional because the unit rate is not constant.
• The table is not proportional because it doesn't pass through the origin.
• The table is proportional and the unit rate is 0.01.